add a PublicationInterface for entities with a publication status and a publication date
add a PublicationInterface for entities with a publication status and a publication date

johnkrovitch/LeComptoirDeLEcureuil,johnkrovitch/LeComptoirDeLEcureuil,johnkrovitch/LeComptoirDeLEcureuil,johnkrovitch/LeComptoirDeLEcureuil